1. "A Leahy Family Christmas": The vivacious Canadian family performs, featuring Celtic folk and fiddle music and step-dancing, talents inherited from their Cape Breton ancestors and passed down to the present generation.
Where: George Mason University Center for the Arts, 4400 University Drive, Fairfax
When: 7 p.m. Sunday
Info: $25 to $50; 888-945-2468;...